22. —You've made great progress in your English study, haven't you?
—Yes, but much____________.
| A．remains to do | B．is remained to do | C．remains to be done | D．is remained to be done |
My son has changed so much that I could hardly __________ his voice on the phone.
| A．recognize | B．realize | C．hear | D．find |
He must be leaving our village because he is __________.
| A．making up | B．packing up | C．setting up | D．getting up |
− Can you _________ all the money that I should pay?
− Very sorry. Please wait a minute, madam.
| A．add | B．add to | C．add up | D．add up to |
It is you rather than Lucy who ____ for the accident.
| A．is to blame | B．is to be blamed |
| C．are to blame | D．are to be blamed |
With so many problems ____, the new government is in rather a difficult situation.
| A．remaining to be solved | B．remained to be solved. |
| C．remaining to solve | D．remain to solve |